UV/vis/fluorimeter cuvette holder with 4 LED slots for irradiation

A contraption which fits around a standard 1x1 cm (internal) pathlength UV/vis or fluorimeter cuvette. Four LEDs fit around the sides allowing the sample to be irradiated from all four sides while being magnetically stirred from below. Useful for e.g. repeated irradiation/spectrometry cycles in photochemical kinetics measurements.

LEDs kept at constant distance from sample: so long as they are well below the liquid level and efficient stirring is maintained, constant and uniform irradiation o